UltraEcho 2009Oct11

We need the "volume" of emitted sound to be much higher - most echolocation animals emit between 60 and 100 decibels! Our experience with current rig justified this - it is much to quiet. We need a circuit to boost volume - probably setup the 5V from the arduino to something much more.

We have extra Secret Sounds devices now, so we could wire up "stereo" sound.